Hi Steve,
yes the ADC is working synchronously via interrupt and a oversampling is
included for better noise of ADC. The signal is 7Hz and the other signals have
the same amplitude (less or greather !!)
The frequenzrange from the noise starts at DC up to 200 Hz.
I need a filter with better than 70dB !
(Sample frequenz for example is 1KHz.)
The greatest problem is the DC up to 1 Hz signal.